Revenue Recognition - Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 91,558	$ 72,648
United States
Disaggregation of Revenue [Line Items]
Revenue	83,100	65,602
International
Disaggregation of Revenue [Line Items]
Revenue	8,458	7,046
Advertising
Disaggregation of Revenue [Line Items]
Revenue	48,668	38,649
Content
Disaggregation of Revenue [Line Items]
Revenue	32,279	19,537
Commerce and other
Disaggregation of Revenue [Line Items]
Revenue	$ 10,611	$ 14,462

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details